mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
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151 lines
3.9 KiB
C++
151 lines
3.9 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/***********************************************************************
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* $Id: groupconcatcolumn.h 9210 2013-01-21 14:10:42Z rdempsey $
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*
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*
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***********************************************************************/
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/** @file */
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#pragma once
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#include <string>
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#include "calpontselectexecutionplan.h"
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#include "aggregatecolumn.h"
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namespace messageqcpp
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{
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class ByteStream;
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}
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/**
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* Namespace
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*/
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namespace execplan
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{
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/**
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* @brief A class to represent a aggregate return column
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*
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* This class is a specialization of class ReturnedColumn that
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* handles an aggregate function call (e.g., SUM, COUNT, MIN, MAX).
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*/
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class GroupConcatColumn : public AggregateColumn
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{
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public:
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/**
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* Constructors
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*/
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GroupConcatColumn();
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explicit GroupConcatColumn(const uint32_t sessionID);
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GroupConcatColumn(const GroupConcatColumn& rhs, const uint32_t sessionID = 0);
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/**
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* Destructors
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*/
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~GroupConcatColumn() override;
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/**
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* Overloaded stream operator
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*/
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const std::string toString() const override;
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/** return a copy of this pointer
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*
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* deep copy of this pointer and return the copy
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*/
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GroupConcatColumn* clone() const override
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{
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return new GroupConcatColumn(*this);
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}
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/**
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* Accessors and Mutators
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*/
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void orderCols(const std::vector<SRCP>& orderCols)
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{
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fOrderCols = orderCols;
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}
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std::vector<SRCP>& orderCols()
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{
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return fOrderCols;
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}
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void separator(const std::string& separator)
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{
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fSeparator = separator;
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}
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std::string& separator()
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{
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return fSeparator;
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}
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/**
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* Serialize interface
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*/
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void serialize(messageqcpp::ByteStream&) const override;
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void unserialize(messageqcpp::ByteStream&) override;
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/** @brief Do a deep, strict (as opposed to semantic) equivalence test
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*
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* Do a deep, strict (as opposed to semantic) equivalence test.
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* @return true iff every member of t is a duplicate copy of every member of this;
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* false otherwise
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*/
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bool operator==(const TreeNode* t) const override;
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/** @brief Do a deep, strict (as opposed to semantic) equivalence test
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*
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* Do a deep, strict (as opposed to semantic) equivalence test.
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* @return true iff every member of t is a duplicate copy of every member of this;
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* false otherwise
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*/
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using AggregateColumn::operator==;
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virtual bool operator==(const GroupConcatColumn& t) const;
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/** @brief Do a deep, strict (as opposed to semantic) equivalence test
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*
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* Do a deep, strict (as opposed to semantic) equivalence test.
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* @return false iff every member of t is a duplicate copy of every member of this;
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* true otherwise
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*/
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bool operator!=(const TreeNode* t) const override;
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/** @brief Do a deep, strict (as opposed to semantic) equivalence test
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*
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* Do a deep, strict (as opposed to semantic) equivalence test.
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* @return false iff every member of t is a duplicate copy of every member of this;
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* true otherwise
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*/
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using AggregateColumn::operator!=;
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virtual bool operator!=(const GroupConcatColumn& t) const;
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string toCppCode(IncludeSet& includes) const override;
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private:
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std::vector<SRCP> fOrderCols;
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std::string fSeparator;
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};
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/**
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* stream operator
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*/
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std::ostream& operator<<(std::ostream& os, const GroupConcatColumn& rhs);
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} // namespace execplan
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